CVE-2024-2511

lowpriority · track · 18EPSS 0.524 · 99 %ileDEEUJPNLRUUS
grimoire priorityP1 · Urgent
Exploitable?
—
no known exploitation
Likely / severe?
52.4% (99th) EPSS
CVSS 3.7 · low
Is it mine?
300 products
Check your exposure
Who says so?
9 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-22

Issue summary: Some non-default TLS server configurations can cause unbounded memory growth when processing TLSv1.3 sessions Impact summary: An attacker may exploit certain server configurations to trigger unbounded memory growth that would lead to a Denial of Service This problem can occur in TLSv1.3 if the non-default SSL_OP_NO_TICKET option is being used (but not if early_data support is also configured and the default anti-replay protection is in use). In this case, under certain conditions, the session cache can get into an incorrect state and it will fail to flush properly as it fills. The session cache will continue to grow in an unbounded manner. A malicious client could deliberately create the scenario for this failure to force a Denial of Service. It may also happen by accident in normal operation. This issue only affects TLS servers supporting TLSv1.3. It does not affect TLS clients. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue. OpenSSL 1.0.2 is also not affected by this issue.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 3.7–7.5

v3.13.7lowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · CISA US
v3.15.9mediumAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 2.2 · impact 3.6
v3.13.7lowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · Siemens ProductCERT DE
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Phoenix Contact PSIRT DE
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Hsecondary · CVSS-BT (t0sche)
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · NCSC-NL NL
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1325USCWE-1325USCWE-400USCWE-400USCWE-404USCWE-404US
05

affected products (300)

Products and version ranges known to be affected.

showing 20 of 300
06

advisories (30)

Vendor and ecosystem advisories describing this.

  • NCSC-2024-0297 Kwetsbaarheden verholpen in Oracle Financial Services ApplicationsNL2024-07-17csaf · ncsc_nlNL

    Er zijn kwetsbaarheden verholpen in Oracle Financial Services Applications.

  • NCSC-2024-0411Kwetsbaarheden verholpen in Oracle Database productenNL2024-10-17csaf · ncsc_nlNL

    Oracle heeft kwetsbaarheden verholpen in diverse Database producten en subsystemen, zoals de Core database, Application Express, Autonomous Health Framework, Essbase, GoldenGate, SQL Developer en Secure Backup.

  • NCSC-2024-0416Kwetsbaarheden verholpen in Oracle Financial Services ApplicationsNL2024-10-17csaf · ncsc_nlNL

    Oracle heeft kwetsbaarheden verholpen in Financial Services Applications.

  • NCSC-2024-0417Kwetsbaarheden verholpen in Oracle Fusion MiddlewareNL2024-10-17csaf · ncsc_nlNL

    Oracle heeft kwetsbaarheden verholpen in Fusion Middleware componenten, zoals WebLogic Server, WebCenter en HTTP Server.

  • NCSC-2024-0433Kwetsbaarheden verholpen in Siemens productenNL2024-11-12csaf · ncsc_nlNL

    Siemens heeft kwetsbaarheden verholpen in diverse producten als Mendix, RUGGEDCOM, SCALANCE, SIMATIC en SINEC.

  • NCSC-2025-0023Kwetsbaarheden verholpen in Oracle PeopleSoftNL2025-01-22csaf · ncsc_nlNL

    Oracle heeft meerdere kwetsbaarheden verholpen in Oracle PeopleSoft, specifiek in de versies 8.60, 8.61 en 9.2.

  • NCSC-2025-0061Kwetsbaarheden verholpen in Siemens productenNL2025-02-14csaf · ncsc_nlNL

    Siemens heeft kwetsbaarheden verholpen in diverse producten als APOGEE, Opcenter, RUGGEDCOM, SCALANCE, SIMATIC, SIPROTEC en Teamcenter.

  • SSA-265688SSA-265688: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP V1.12024-04-09csaf · siemens_psirtDE

    Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP V1.1. Siemens has released a new version for SIMATIC S7-1500 TM MFP - GNU/Linux subsystem and recommends to update to the latest version. Siemens is preparing further fixes and recommends specific mitigations for products where fixes are not or not yet available. SIMATIC S7-1500 TM MFP V1.1 is no longer maintained and there won't be any update to the CVE list anymore. Please update to the latest version. Note: This SSA advises vulnerabilities for firmware version V1.1 only; for version V1.1.1 refer to SSA-784472.

  • SSA-354112SSA-354112: Multiple Vulnerabilities in SCALANCE M-800 Family Before V8.22024-11-12csaf · siemens_psirtDE

    SCALANCE M-800 family before V8.2 is affected by multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.

  • SSA-398330SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.52023-12-12csaf · siemens_psirtDE

    Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version >= V3.1.0 and < V3.1.5 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). These GNU/Linux vulnerabilities have been externally identified. Siemens has released new versions for the affected products and recommends to update to the latest versions. SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 are no longer maintained and there won't be any update to the CVE list anymore. Please update to the latest version. Note: This SSA advises vulnerabilities for firmware version V3.1 only; for versions < V3.1 refer to Siemens Security Bulletin SSB-439005 (https://cert-portal.siemens.com/productcert/html/ssb-439005.html).

  • SSA-613116SSA-613116: Multiple Vulnerabilities in Third-Party Components in SINEC OS before V3.12025-08-12csaf · siemens_psirtDE

    SINEC OS before V3.1 contains third-party components with multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.

  • SSA-769027SSA-769027: Multiple Vulnerabilities fixed in SCALANCE W700 IEEE 802.11ax devices before V3.0.02025-02-11csaf · siemens_psirtDE

    SCALANCE W-700 IEEE 802.11ax family devices are affected by multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.

  • SSA-915275SSA-915275: Multiple Vulnerabilities in SINEC INS Before V1.0 SP2 Update 32024-11-12csaf · siemens_psirtDE

    SINEC INS before V1.0 SP2 Update 3 is affected by multiple vulnerabilities. Siemens has released a new version for SINEC INS and recommends to update to the latest version.

  • VDE-2024-029Phoenix Contact: Unbounded growth of OpenSSL session cache in multiple FL MGUARD devices2024-06-11csaf · phoenix_contact_psirtDE

    The OpenSSL library used in the affected products is vulnerable to an unbounded growth of the session cache in the TLSv1.3 implementation.

  • VDE-2024-071Phoenix Contact: Multiple Vulnerabilities in PLCnext Firmware2024-12-09csaf · phoenix_contact_psirtDE

    Multiple Linux component vulnerabilities fixed in latest PLCnext Firmware release 2024.0.6 LTS

  • VDE-2025-109Phoenix Contact: Unbounded growth of the session cache in TCP encapsulation service in FL MGUARD 2xxx and 4xxx firmware2026-02-10csaf · phoenix_contact_psirtDE

    The OpenSSL library used in the affected products is vulnerable to an unbounded growth of the session cache in the TLSv1.3 implementation.

  • WID-SEC-W-2024-0813OpenSSL: Schwachstelle ermöglicht Denial of ServiceDeutsch2024-04-08csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OpenSSL ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • WID-SEC-W-2024-1638Oracle Financial Services Applications: Mehrere SchwachstellenDeutsch2024-07-16csaf · cert_bundDE

    Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Financial Services Applications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

  • WID-SEC-W-2024-2112Insyde UEFI Firmware: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2024-09-10csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Insyde UEFI Firmware ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • WID-SEC-W-2024-3191Oracle Fusion Middleware: Mehrere SchwachstellenDeutsch2024-10-15csaf · cert_bundDE

    Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Fusion Middleware ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

  • WID-SEC-W-2024-3192Oracle Financial Services Applications: Mehrere SchwachstellenDeutsch2024-10-15csaf · cert_bundDE

    Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Financial Services Applications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

  • WID-SEC-W-2025-0225Dell PowerProtect Data Domain: Mehrere SchwachstellenDeutsch2025-01-30csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Dell PowerProtect Data Domain ausnutzen, um erhöhte Rechte zu erlangen, einen Denial-of-Service-Zustand herbeizuführen und einen nicht näher spezifizierten Angriff durchzuführen.

  • WID-SEC-W-2025-0647Splunk Splunk Enterprise: Mehrere SchwachstellenDeutsch2025-03-26csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise ausnutzen, um Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen preiszugeben, Daten zu manipulieren, Code auszuführen, einen Denial-of-Service-Zustand zu verursachen und weitere, nicht spezifizierte Auswirkungen zu verursachen.

  • ICSA-23-348-10Siemens SIMATIC S7-15002023-12-12icsa · cisa_csaf_otUS

    Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version >= V3.1.0 and < V3.1.5 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). These GNU/Linux vulnerabilities have been externally identified. Siemens has released new versions for the affected products and recommends to update to the latest versions. Note: This SSA advises vulnerabilities for firmware version V3.1 only; for versions < V3.1 refer to Siemens Security Bulletin SSB-439005 ( https://cert-portal.siemens.com/productcert/html/ssb-439005.html).

  • ICSA-24-102-01Siemens SIMATIC S7-1500 TM MFP2024-04-09icsa · cisa_csaf_otUS

    Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP V1.1. Siemens is preparing fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.

  • ICSA-24-319-06Siemens SCALANCE M-800 Family2024-11-12icsa · cisa_csaf_otUS

    SCALANCE M-800 family before V8.2 is affected by multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.

  • ICSA-24-319-08Siemens SINEC INS2024-11-12icsa · cisa_csaf_otUS

    SINEC INS before V1.0 SP2 Update 3 is affected by multiple vulnerabilities. Siemens has released a new version for SINEC INS and recommends to update to the latest version.

  • ICSA-25-044-09Siemens SCALANCE W700 IEEE 802.11ax2025-02-11icsa · cisa_csaf_otUS

    SCALANCE W-700 IEEE 802.11ax family devices are affected by multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.

  • ICSA-25-226-15Siemens SINEC OS2025-08-12icsa · cisa_csaf_otUS

    SINEC OS before V3.1 contains third-party components with multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.

  • JVNDB-2026-003909JVN iPedia advisory JVNDB-2026-0039092026-02-17vendor · jvndbJP
07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundncsc_nlsiemens_psirtphoenix_contact_psirtcisa_csaf_otjvndbNVDCVE.orgMITRE
published 2024-04-08modified 2026-10-15
09

references (29)

External citations — patches, advisories, analysis.

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